Refer to the Figure Below $\rightarrow$ BH and NAD⁺ $\rightarrow$ NADH
B) AH

Refer to the figure below. Which half-reactions represent a change from more stored free energy to less stored free energy?

A) B $\rightarrow$ BH and NAD⁺ $\rightarrow$ NADH
B) AH $\rightarrow$ A and B $\rightarrow$ BH
C) AH $\rightarrow$ A and NAD⁺ $\rightarrow$ NADH
D) AH $\rightarrow$ A and NADH $\rightarrow$ NAD⁺
E) B $\rightarrow$ BH and NADH $\rightarrow$ NAD⁺